Structural Analyses of Fractional Monolayer $(\text{GaAs})_{m}/(\text{AlAs})_{n}$ Superlattices by X-ray Resonant/Off-Resonant Scattering

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概要

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• The structure of $(\text{GaAs})_{m}/(\text{AlAs})_{n}$ superlattices with a period length of a fractional number in monolayer (ML) units, which is fabricated by shutter control in molecular beam epitaxy (MBE) growth, is studied by X-ray diffraction (XRD) analysis using synchrotron radiation. Satellite peaks originating from the fractional superlattice (SL) periods, 1.69 monolayers (ML), are clearly observed in XRD profiles. XRD simulation, which is based on the model of modulated composition distribution, can reproduce the satellite peak positions. We also measure X-ray resonant scattering at the Ga K-edge and estimate the atomic composition in the SL region.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-04-30

著者

• Fujii Kensuke

  Department Of Physics Graduate School Of Science Kyoto University

• MIZUMAKI Masaichiro

  Japan Synchrotron Radiation Research Institute

• SAKATA Osami

  Japan Synchrotron Radiation Research Institute

• Ueji Rintaro

  Department Of Advanced Materials Science Faculty Of Engineering Kagawa University

• MIYAGAWA Hayato

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University

• TAKAO Katsuhiro

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University

• SUMIDA Naoto

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University

• Kimura Shigeru

  Japan Symchrotron Radiation Research Institute

• Koshiba Shyun

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu 761-0396, Japan

• Miyagawa Hayato

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu 761-0396, Japan

• Kimura Shigeru

  Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan

• Sakata Osami

  Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan

• Ueji Rintaro

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu 761-0396, Japan

• Takao Katsuhiro

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu 761-0396, Japan

• Fujii Kensuke

  Department of Advanced Materials Science, Faculty of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu 761-0396, Japan

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